Valve.



No. 780,786. y 'PAT/BNTED JAN. 24, 1905. G. W. DUNHAM.

VALVE.

APPLIOATION FILED JUNE 14,1904'.

. m5 W Uwe/20172 Witnzoou Y f l v UNITEDV STATES Patented .fanuery' a4, 1905.

PATENT 'OFFICE CHARLES W. DUNHAM, OF CHICAGO, ILLINOIS.

VALVE.

SPECIFICATION forming part ef Letters Patent No. 780,786, dated January 24, 1905.

l Application filed June 14, 1904. Serial No. 212,549. Y

T0 all whom t may concern.-

Be it known that I, CHARLES W. DUNHAM, a citizen of the United States, residing at Twenty-sixth and State streets, Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to pressure-regulators or governors for regulating the flow of fluids, as gas of various kinds; and it consists of certain novel features of construction and combination of parts, the preferred form whereof will be hereinafter clearly set forth, and pointed out in the claim.

The prime object of my invention is to regulate or govern the flow of fluids, whereby the quantity delivered willbe practically of one uniform pressure, the result being that it will provea gas-saving appliance, as will be `clearly set forth in the following specification.

Other objects and advantages will be hereinafter made clearly apparent, reference being had to the accompanying drawings, which are made a part of this application, and in which- Figure l shows a perspective view of my invention as applied touse upon a gas-meter and its delivery-pipe. Fig. 2 is a longitudinal central section of my invention as applied to use. Fig. 3 is a perspective detail View of my governor attachment complete ready to be applied to its operative position upon the delivery-pipe or other point. Fig. 4 is adetail View in section of the casing of my attachment, the upper part of the same being broken away.

For convenience of` reference to the various details and cooperating accessories numerals'will be employed, the same numeral applying to a similar part throughout the several views.

Referring to the numerals on the drawings, whereby the details of construction of my invention may be made clearly manifest, l designates the base member or diaphragm, which may be made of any preferred material and any size suitable for the purpose. The said diaphragm is provided with a central opening 2, varying in size according to the size of the governor to be manufactured, the size being determined by the uses to which the appliance is applied. The said opening 2 is always to be of less diameter than the size of the ball or spherical valve proper, 3, whereby said spherical valve will rest in the aperture or seat'2 and not fall below the diaphragm 1. Upon'the upper side of the diaphragm I attach the casing or jacket 4, which is left open at its upper end except for the cross-bar 5, which is designed to be extended directly across the upper end of the casing and secured thereto in any preferred way, preferably by forming the cross-bar integral with the casing and soldering or snapping down the angular terminal 6 of said cross-bar 5, the oflice of the cross-bar being to prevent the ball from raising upward out of the casing 4, as will be obvious. The lower portionv of the casing 4 is 'cut away, as indicated by the numeral 7,

` whereby the gas can escape through said opening when the ball has been forced up in the upper end of the casing.

In Fig. 2 I .have shown the spherical valve or ball 3 as being seated in the opening 2, and thereby closing the opening for the escape of the gas; but it is obvious that when the pressure of the gas or other luid to be controlled increases sufficiently the ball will be elevated out of its seat,'permitting the flow of the gas to take place through the opening 2, and thence out through the side openings or recesses 7 in the casing, and as the casing 4 is of less diameter than the pipe with which it is designed to' coperate it follows that the free passage of the gas or the like will be provided by means of the annular space between the outer walls of the casing and the inner walls of the surrounding pipe in which my governor has been located. y

It will be understood that the diameter of the base or diaphragm 1 is such as to coincide with the diameter of the pipe with which it is placed-in coperation, and as will be clearly seen in Fig. 2 of the drawings.

By reference to Fig. 2 it will be observed that the diaphragm l rests directly upon the IOO upper end of the pipe-section 8, while the pipesection 9 is provided with the flange 10 to engage the exterior threads upon the pipe 8, and it therefore follows that when the pipes 8 and 9 are screwed together with the diaphragm interposed between them said diaphragm will be securely locked in its operative position to hold the casing 4 upon the upper side thereof and that when the pressure of the gas increases sufliciently to raise the ball 3 out of its seat the gas is permitted to flow upward through the recesses 7 and thence to the point of combustion.

In F ig. 1 I have shown the usual stop-cock 11 to cut off the fiow of the gas to the meter. In Figs. 1 and2 it will also be observed that the pipe 9 is placed in threaded connection with the conveyer-pipe 12, while the pipe 8 is also placed in threaded connection with the union or connecting thimble 13, which latter is connected by means of its lower threaded end into the connecting-pipe 14, commonly provided with a meter, and it therefore follows that my attachment may be easily placed in position upon any gas-meter as now constructed.

The casing 4, it will be observed, may be fashioned out of a single piece of sheet metal properly bent upon itself in tubular form and that the cross-bar 5 may also be integrally formed at the same operation and the lower end of the easing connected to the diaphragm in any suitable manner. It will therefore be observed that the parts of my invention may be very cheaply and expeditiously manufactured in great quantities and readily assembled each in its operative place, and while I have described the preferred construction and combination of parts I desire to comprehend in this application all substantial equivalents and substitutes as may be considered as falling fairly within the scope and purview of my invention.

What I claim as new, and desire to secure by Letters Patent, ises The herein described automatic pressureregulator or cut-off valve comprising a diaphragm having a valve-seat, a casing connected to the diaphragm above and surrounding said seat, a spherical valve for said seat of less diameter than the inner diameter of the casing and adapted to fit loosely therein, a cross-bar at the upper end of said casing adapted to hold said spherical valve therein, one end of said bar being formed integral with the casing and the opposite end secured thereto in any preferred manner, said casing having a pair of longitudinally-disposed reeesses upon opposite sides and near the lower end of said casing whereby, when the valve is raised to the upper end of said casing, the gas will freely escape through said recesses, all combined substantially as specified and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES W. DUNHAM.

Titnesses Guo. H. PATTisoN, H. C. HARNIsH. 

